Before changing headers to V6 and changing portLONG, portSHORt and portCHAR to their standard C types.

20091005/Demo/ARM7_LPC2129_Keil_RVDS/serial/serialISR.s

@@ -0,0 +1,83 @@
+;/*
+;	FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
+;
+;	This file is part of the FreeRTOS distribution.
+;
+;	FreeRTOS is free software; you can redistribute it and/or modify it	under 
+;	the terms of the GNU General Public License (version 2) as published by the 
+;	Free Software Foundation and modified by the FreeRTOS exception.
+;	**NOTE** The exception to the GPL is included to allow you to distribute a
+;	combined work that includes FreeRTOS without being obliged to provide the 
+;	source code for proprietary components outside of the FreeRTOS kernel.  
+;	Alternative commercial license and support terms are also available upon 
+;	request.  See the licensing section of http://www.FreeRTOS.org for full 
+;	license details.
+;
+;	FreeRTOS is distributed in the hope that it will be useful,	but WITHOUT
+;	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+;	FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+;	more details.
+;
+;	You should have received a copy of the GNU General Public License along
+;	with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
+;	Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+;
+;
+;	***************************************************************************
+;	*                                                                         *
+;	* Looking for a quick start?  Then check out the FreeRTOS eBook!          *
+;	* See http://www.FreeRTOS.org/Documentation for details                   *
+;	*                                                                         *
+;	***************************************************************************
+;
+;	1 tab == 4 spaces!
+;
+;	Please ensure to read the configuration and relevant port sections of the
+;	online documentation.
+;
+;	http://www.FreeRTOS.org - Documentation, latest information, license and
+;	contact details.
+;
+;	http://www.SafeRTOS.com - A version that is certified for use in safety
+;	critical systems.
+;
+;	http://www.OpenRTOS.com - Commercial support, development, porting,
+;	licensing and training services.
+;*/
+		
+	INCLUDE portmacro.inc
+	
+	;The UART interrupt entry point is defined within an assembly wrapper
+	;within this file.  This takes care of the task context saving before it
+	;calls the main handler (vUART_ISRHandler()) which is written in C within
+	;serial.c.  The execution of the handler can unblock tasks that were blocked
+	;waiting for UART events.  Once the handler completes the asm wrapper 
+	;finishes off by	restoring the context of whichever task is now selected to 
+	;enter the RUNNING state (which might now be a different task to that which
+	;was originally interrupted.
+	IMPORT vUART_ISRHandler
+	EXPORT vUART_ISREntry
+
+	;/* Interrupt entry must always be in ARM mode. */
+	ARM
+	AREA	|.text|, CODE, READONLY
+
+
+vUART_ISREntry
+
+	PRESERVE8
+
+	; Save the context of the interrupted task.
+	portSAVE_CONTEXT			
+
+	; Call the C handler function - defined within serial.c.
+	LDR R0, =vUART_ISRHandler
+	MOV LR, PC				
+	BX R0
+
+	; Finish off by restoring the context of the task that has been chosen to 
+	; run next - which might be a different task to that which was originally
+	; interrupted.
+	portRESTORE_CONTEXT
+
+	END